forked from BBuf/Image-processing-algorithm-Speed
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathspeed_rgb2yuv_sse.cpp
869 lines (744 loc) · 55.4 KB
/
speed_rgb2yuv_sse.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
#include <stdio.h>
#include <opencv2/opencv.hpp>
#include <future>
#include <sys/time.h>
extern "C"
{
#include "libavcodec/avcodec.h"
#include "libavformat/avformat.h"
#include "libavutil/pixdesc.h"
#include "libavutil/hwcontext.h"
#include "libavutil/opt.h"
#include "libavutil/avassert.h"
#include "libavutil/imgutils.h"
#include "libavutil/pixfmt.h"
#include "libswscale/swscale.h"
}
using namespace std;
using namespace cv;
inline unsigned char ClampToByte(int Value) {
if (Value < 0)
return 0;
else if (Value > 255)
return 255;
else
return (unsigned char)Value;
//return ((Value | ((signed int)(255 - Value) >> 31)) & ~((signed int)Value >> 31));
}
void RGB2YUV(unsigned char *RGB, unsigned char *Y, unsigned char *U, unsigned char *V, int Width, int Height, int Stride) {
for (int YY = 0; YY < Height; YY++) {
unsigned char *LinePS = RGB + YY * Stride;
unsigned char *LinePY = Y + YY * Width;
unsigned char *LinePU = U + YY * Width;
unsigned char *LinePV = V + YY * Width;
for (int XX = 0; XX < Width; XX++, LinePS += 3)
{
int Blue = LinePS[0], Green = LinePS[1], Red = LinePS[2];
LinePY[XX] = int(0.299*Red + 0.587*Green + 0.144*Blue);
LinePU[XX] = int(-0.147*Red - 0.289*Green + 0.436*Blue);
LinePV[XX] = int(0.615*Red - 0.515*Green - 0.100*Blue);
}
}
}
void YUV2RGB(unsigned char *Y, unsigned char *U, unsigned char *V, unsigned char *RGB, int Width, int Height, int Stride) {
for (int YY = 0; YY < Height; YY++)
{
unsigned char *LinePD = RGB + YY * Stride;
unsigned char *LinePY = Y + YY * Width;
unsigned char *LinePU = U + YY * Width;
unsigned char *LinePV = V + YY * Width;
for (int XX = 0; XX < Width; XX++, LinePD += 3)
{
int YV = LinePY[XX], UV = LinePU[XX], VV = LinePV[XX];
LinePD[0] = int(YV + 2.03 * UV);
LinePD[1] = int(YV - 0.39 * UV - 0.58 * VV);
LinePD[2] = int(YV + 1.14 * VV);
}
}
}
void RGB2YUV_1(unsigned char *RGB, unsigned char *Y, unsigned char *U, unsigned char *V, int Width, int Height, int Stride)
{
const int Shift = 8;
const int HalfV = 1 << (Shift - 1);
const int Y_B_WT = 0.114f * (1 << Shift), Y_G_WT = 0.587f * (1 << Shift), Y_R_WT = (1 << Shift) - Y_B_WT - Y_G_WT;
const int U_B_WT = 0.436f * (1 << Shift), U_G_WT = -0.28886f * (1 << Shift), U_R_WT = -(U_B_WT + U_G_WT);
const int V_B_WT = -0.10001 * (1 << Shift), V_G_WT = -0.51499f * (1 << Shift), V_R_WT = -(V_B_WT + V_G_WT);
for (int YY = 0; YY < Height; YY++)
{
unsigned char *LinePS = RGB + YY * Stride;
unsigned char *LinePY = Y + YY * Width;
unsigned char *LinePU = U + YY * Width;
unsigned char *LinePV = V + YY * Width;
for (int XX = 0; XX < Width; XX++, LinePS += 3)
{
int Blue = LinePS[0], Green = LinePS[1], Red = LinePS[2];
LinePY[XX] = (Y_B_WT * Blue + Y_G_WT * Green + Y_R_WT * Red + HalfV) >> Shift;
LinePU[XX] = ((U_B_WT * Blue + U_G_WT * Green + U_R_WT * Red + HalfV) >> Shift) + 128;
LinePV[XX] = ((V_B_WT * Blue + V_G_WT * Green + V_R_WT * Red + HalfV) >> Shift) + 128;
}
}
}
void YUV2RGB_1(unsigned char *Y, unsigned char *U, unsigned char *V, unsigned char *RGB, int Width, int Height, int Stride)
{
const int Shift = 8;
const int HalfV = 1 << (Shift - 1);
const int B_Y_WT = 1 << Shift, B_U_WT = 2.03211f * (1 << Shift), B_V_WT = 0;
const int G_Y_WT = 1 << Shift, G_U_WT = -0.39465f * (1 << Shift), G_V_WT = -0.58060f * (1 << Shift);
const int R_Y_WT = 1 << Shift, R_U_WT = 0, R_V_WT = 1.13983 * (1 << Shift);
for (int YY = 0; YY < Height; YY++)
{
unsigned char *LinePD = RGB + YY * Stride;
unsigned char *LinePY = Y + YY * Width;
unsigned char *LinePU = U + YY * Width;
unsigned char *LinePV = V + YY * Width;
for (int XX = 0; XX < Width; XX++, LinePD += 3)
{
int YV = LinePY[XX], UV = LinePU[XX] - 128, VV = LinePV[XX] - 128;
LinePD[0] = ClampToByte(YV + ((B_U_WT * UV + HalfV) >> Shift));
LinePD[1] = ClampToByte(YV + ((G_U_WT * UV + G_V_WT * VV + HalfV) >> Shift));
LinePD[2] = ClampToByte(YV + ((R_V_WT * VV + HalfV) >> Shift));
}
}
}
void RGB2YUV_OpenMP(unsigned char *RGB, unsigned char *Y, unsigned char *U, unsigned char *V, int Width, int Height, int Stride)
{
const int Shift = 8;
const int HalfV = 1 << (Shift - 1);
const int Y_B_WT = 0.114f * (1 << Shift), Y_G_WT = 0.587f * (1 << Shift), Y_R_WT = (1 << Shift) - Y_B_WT - Y_G_WT;
const int U_B_WT = 0.436f * (1 << Shift), U_G_WT = -0.28886f * (1 << Shift), U_R_WT = -(U_B_WT + U_G_WT);
const int V_B_WT = -0.10001 * (1 << Shift), V_G_WT = -0.51499f * (1 << Shift), V_R_WT = -(V_B_WT + V_G_WT);
for (int YY = 0; YY < Height; YY++)
{
unsigned char *LinePS = RGB + YY * Stride;
unsigned char *LinePY = Y + YY * Width;
unsigned char *LinePU = U + YY * Width;
unsigned char *LinePV = V + YY * Width;
#pragma omp parallel for num_threads(4)
for (int XX = 0; XX < Width; XX++)
{
int Blue = LinePS[XX*3 + 0], Green = LinePS[XX*3 + 1], Red = LinePS[XX*3 + 2];
LinePY[XX] = (Y_B_WT * Blue + Y_G_WT * Green + Y_R_WT * Red + HalfV) >> Shift;
LinePU[XX] = ((U_B_WT * Blue + U_G_WT * Green + U_R_WT * Red + HalfV) >> Shift) + 128;
LinePV[XX] = ((V_B_WT * Blue + V_G_WT * Green + V_R_WT * Red + HalfV) >> Shift) + 128;
}
}
}
void YUV2RGB_OpenMP(unsigned char *Y, unsigned char *U, unsigned char *V, unsigned char *RGB, int Width, int Height, int Stride)
{
const int Shift = 8;
const int HalfV = 1 << (Shift - 1);
const int B_Y_WT = 1 << Shift, B_U_WT = 2.03211f * (1 << Shift), B_V_WT = 0;
const int G_Y_WT = 1 << Shift, G_U_WT = -0.39465f * (1 << Shift), G_V_WT = -0.58060f * (1 << Shift);
const int R_Y_WT = 1 << Shift, R_U_WT = 0, R_V_WT = 1.13983 * (1 << Shift);
for (int YY = 0; YY < Height; YY++)
{
unsigned char *LinePD = RGB + YY * Stride;
unsigned char *LinePY = Y + YY * Width;
unsigned char *LinePU = U + YY * Width;
unsigned char *LinePV = V + YY * Width;
#pragma omp parallel for num_threads(4)
for (int XX = 0; XX < Width; XX++)
{
int YV = LinePY[XX], UV = LinePU[XX] - 128, VV = LinePV[XX] - 128;
LinePD[XX*3 + 0] = ClampToByte(YV + ((B_U_WT * UV + HalfV) >> Shift));
LinePD[XX*3 + 1] = ClampToByte(YV + ((G_U_WT * UV + G_V_WT * VV + HalfV) >> Shift));
LinePD[XX*3 + 2] = ClampToByte(YV + ((R_V_WT * VV + HalfV) >> Shift));
}
}
}
void RGB2YUVSSE_2(unsigned char *RGB, unsigned char *Y, unsigned char *U, unsigned char *V, int Width, int Height, int Stride) {
const int Shift = 13;
const int HalfV = 1 << (Shift - 1);
const int Y_B_WT = 0.114f * (1 << Shift), Y_G_WT = 0.587f * (1 << Shift), Y_R_WT = (1 << Shift) - Y_B_WT - Y_G_WT;
const int U_B_WT = 0.436f * (1 << Shift), U_G_WT = -0.28886f * (1 << Shift), U_R_WT = -(U_B_WT + U_G_WT);
const int V_B_WT = -0.10001 * (1 << Shift), V_G_WT = -0.51499f * (1 << Shift), V_R_WT = -(V_B_WT + V_G_WT);
__m128i Weight_YB = _mm_set1_epi32(Y_B_WT), Weight_YG = _mm_set1_epi32(Y_G_WT), Weight_YR = _mm_set1_epi32(Y_R_WT);
__m128i Weight_UB = _mm_set1_epi32(U_B_WT), Weight_UG = _mm_set1_epi32(U_G_WT), Weight_UR = _mm_set1_epi32(U_R_WT);
__m128i Weight_VB = _mm_set1_epi32(V_B_WT), Weight_VG = _mm_set1_epi32(V_G_WT), Weight_VR = _mm_set1_epi32(V_R_WT);
__m128i C128 = _mm_set1_epi32(128);
__m128i Half = _mm_set1_epi32(HalfV);
__m128i Zero = _mm_setzero_si128();
const int BlockSize = 16, Block = Width / BlockSize;
for (int YY = 0; YY < Height; YY++) {
unsigned char *LinePS = RGB + YY * Stride;
unsigned char *LinePY = Y + YY * Width;
unsigned char *LinePU = U + YY * Width;
unsigned char *LinePV = V + YY * Width;
for (int XX = 0; XX < Block * BlockSize; XX += BlockSize, LinePS += BlockSize * 3) {
__m128i Src1, Src2, Src3, Blue, Green, Red;
Src1 = _mm_loadu_si128((__m128i *)(LinePS + 0));
Src2 = _mm_loadu_si128((__m128i *)(LinePS + 16));
Src3 = _mm_loadu_si128((__m128i *)(LinePS + 32));
// 以下操作把16个连续像素的像素顺序由 B G R B G R B G R B G R B G R B G R B G R B G R B G R B G R B G R B G R B G R B G R B G R B G R
// 更改为适合于SIMD指令处理的连续序列 B B B B B B B B B B B B B B B B G G G G G G G G G G G G G G G G R R R R R R R R R R R R R R R R
Blue = _mm_shuffle_epi8(Src1, _mm_setr_epi8(0, 3, 6, 9, 12, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1));
Blue = _mm_or_si128(Blue, _mm_shuffle_epi8(Src2, _mm_setr_epi8(-1, -1, -1, -1, -1, -1, 2, 5, 8, 11, 14, -1, -1, -1, -1, -1)));
Blue = _mm_or_si128(Blue, _mm_shuffle_epi8(Src3, _mm_setr_epi8(-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, 4, 7, 10, 13)));
Green = _mm_shuffle_epi8(Src1, _mm_setr_epi8(1, 4, 7, 10, 13, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1));
Green = _mm_or_si128(Green, _mm_shuffle_epi8(Src2, _mm_setr_epi8(-1, -1, -1, -1, -1, 0, 3, 6, 9, 12, 15, -1, -1, -1, -1, -1)));
Green = _mm_or_si128(Green, _mm_shuffle_epi8(Src3, _mm_setr_epi8(-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 2, 5, 8, 11, 14)));
Red = _mm_shuffle_epi8(Src1, _mm_setr_epi8(2, 5, 8, 11, 14, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1));
Red = _mm_or_si128(Red, _mm_shuffle_epi8(Src2, _mm_setr_epi8(-1, -1, -1, -1, -1, 1, 4, 7, 10, 13, -1, -1, -1, -1, -1, -1)));
Red = _mm_or_si128(Red, _mm_shuffle_epi8(Src3, _mm_setr_epi8(-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 3, 6, 9, 12, 15)));
// 以下操作将三个SSE变量里的字节数据分别提取到12个包含4个int类型的数据的SSE变量里，以便后续的乘积操作不溢出
__m128i Blue16L = _mm_unpacklo_epi8(Blue, Zero);
__m128i Blue16H = _mm_unpackhi_epi8(Blue, Zero);
__m128i Blue32LL = _mm_unpacklo_epi16(Blue16L, Zero);
__m128i Blue32LH = _mm_unpackhi_epi16(Blue16L, Zero);
__m128i Blue32HL = _mm_unpacklo_epi16(Blue16H, Zero);
__m128i Blue32HH = _mm_unpackhi_epi16(Blue16H, Zero);
__m128i Green16L = _mm_unpacklo_epi8(Green, Zero);
__m128i Green16H = _mm_unpackhi_epi8(Green, Zero);
__m128i Green32LL = _mm_unpacklo_epi16(Green16L, Zero);
__m128i Green32LH = _mm_unpackhi_epi16(Green16L, Zero);
__m128i Green32HL = _mm_unpacklo_epi16(Green16H, Zero);
__m128i Green32HH = _mm_unpackhi_epi16(Green16H, Zero);
__m128i Red16L = _mm_unpacklo_epi8(Red, Zero);
__m128i Red16H = _mm_unpackhi_epi8(Red, Zero);
__m128i Red32LL = _mm_unpacklo_epi16(Red16L, Zero);
__m128i Red32LH = _mm_unpackhi_epi16(Red16L, Zero);
__m128i Red32HL = _mm_unpacklo_epi16(Red16H, Zero);
__m128i Red32HH = _mm_unpackhi_epi16(Red16H, Zero);
// 以下操作完成：Y[0 - 15] = (Y_B_WT * Blue[0 - 15]+ Y_G_WT * Green[0 - 15] + Y_R_WT * Red[0 - 15] + HalfV) >> Shift;
__m128i LL_Y = _mm_srai_epi32(_mm_add_epi32(_mm_add_epi32(_mm_mullo_epi32(Blue32LL, Weight_YB), _mm_add_epi32(_mm_mullo_epi32(Green32LL, Weight_YG), _mm_mullo_epi32(Red32LL, Weight_YR))), Half), Shift);
__m128i LH_Y = _mm_srai_epi32(_mm_add_epi32(_mm_add_epi32(_mm_mullo_epi32(Blue32LH, Weight_YB), _mm_add_epi32(_mm_mullo_epi32(Green32LH, Weight_YG), _mm_mullo_epi32(Red32LH, Weight_YR))), Half), Shift);
__m128i HL_Y = _mm_srai_epi32(_mm_add_epi32(_mm_add_epi32(_mm_mullo_epi32(Blue32HL, Weight_YB), _mm_add_epi32(_mm_mullo_epi32(Green32HL, Weight_YG), _mm_mullo_epi32(Red32HL, Weight_YR))), Half), Shift);
__m128i HH_Y = _mm_srai_epi32(_mm_add_epi32(_mm_add_epi32(_mm_mullo_epi32(Blue32HH, Weight_YB), _mm_add_epi32(_mm_mullo_epi32(Green32HH, Weight_YG), _mm_mullo_epi32(Red32HH, Weight_YR))), Half), Shift);
_mm_storeu_si128((__m128i*)(LinePY + XX), _mm_packus_epi16(_mm_packus_epi32(LL_Y, LH_Y), _mm_packus_epi32(HL_Y, HH_Y))); // 4个包含4个int类型的SSE变量重新打包为1个包含16个字节数据的SSE变量
// 以下操作完成: U[0 - 15] = ((U_B_WT * Blue[0 - 15]+ U_G_WT * Green[0 - 15] + U_R_WT * Red[0 - 15] + HalfV) >> Shift) + 128;
__m128i LL_U = _mm_add_epi32(_mm_srai_epi32(_mm_add_epi32(_mm_add_epi32(_mm_mullo_epi32(Blue32LL, Weight_UB), _mm_add_epi32(_mm_mullo_epi32(Green32LL, Weight_UG), _mm_mullo_epi32(Red32LL, Weight_UR))), Half), Shift), C128);
__m128i LH_U = _mm_add_epi32(_mm_srai_epi32(_mm_add_epi32(_mm_add_epi32(_mm_mullo_epi32(Blue32LH, Weight_UB), _mm_add_epi32(_mm_mullo_epi32(Green32LH, Weight_UG), _mm_mullo_epi32(Red32LH, Weight_UR))), Half), Shift), C128);
__m128i HL_U = _mm_add_epi32(_mm_srai_epi32(_mm_add_epi32(_mm_add_epi32(_mm_mullo_epi32(Blue32HL, Weight_UB), _mm_add_epi32(_mm_mullo_epi32(Green32HL, Weight_UG), _mm_mullo_epi32(Red32HL, Weight_UR))), Half), Shift), C128);
__m128i HH_U = _mm_add_epi32(_mm_srai_epi32(_mm_add_epi32(_mm_add_epi32(_mm_mullo_epi32(Blue32HH, Weight_UB), _mm_add_epi32(_mm_mullo_epi32(Green32HH, Weight_UG), _mm_mullo_epi32(Red32HH, Weight_UR))), Half), Shift), C128);
_mm_storeu_si128((__m128i*)(LinePU + XX), _mm_packus_epi16(_mm_packus_epi32(LL_U, LH_U), _mm_packus_epi32(HL_U, HH_U)));
// 以下操作完成：V[0 - 15] = ((V_B_WT * Blue[0 - 15]+ V_G_WT * Green[0 - 15] + V_R_WT * Red[0 - 15] + HalfV) >> Shift) + 128;
__m128i LL_V = _mm_add_epi32(_mm_srai_epi32(_mm_add_epi32(_mm_add_epi32(_mm_mullo_epi32(Blue32LL, Weight_VB), _mm_add_epi32(_mm_mullo_epi32(Green32LL, Weight_VG), _mm_mullo_epi32(Red32LL, Weight_VR))), Half), Shift), C128);
__m128i LH_V = _mm_add_epi32(_mm_srai_epi32(_mm_add_epi32(_mm_add_epi32(_mm_mullo_epi32(Blue32LH, Weight_VB), _mm_add_epi32(_mm_mullo_epi32(Green32LH, Weight_VG), _mm_mullo_epi32(Red32LH, Weight_VR))), Half), Shift), C128);
__m128i HL_V = _mm_add_epi32(_mm_srai_epi32(_mm_add_epi32(_mm_add_epi32(_mm_mullo_epi32(Blue32HL, Weight_VB), _mm_add_epi32(_mm_mullo_epi32(Green32HL, Weight_VG), _mm_mullo_epi32(Red32HL, Weight_VR))), Half), Shift), C128);
__m128i HH_V = _mm_add_epi32(_mm_srai_epi32(_mm_add_epi32(_mm_add_epi32(_mm_mullo_epi32(Blue32HH, Weight_VB), _mm_add_epi32(_mm_mullo_epi32(Green32HH, Weight_VG), _mm_mullo_epi32(Red32HH, Weight_VR))), Half), Shift), C128);
_mm_storeu_si128((__m128i*)(LinePV + XX), _mm_packus_epi16(_mm_packus_epi32(LL_V, LH_V), _mm_packus_epi32(HL_V, HH_V)));
}
for (int XX = Block * BlockSize; XX < Width; XX++, LinePS += 3) {
int Blue = LinePS[0], Green = LinePS[1], Red = LinePS[2];
LinePY[XX] = (Y_B_WT * Blue + Y_G_WT * Green + Y_R_WT * Red + HalfV) >> Shift;
LinePU[XX] = ((U_B_WT * Blue + U_G_WT * Green + U_R_WT * Red + HalfV) >> Shift) + 128;
LinePV[XX] = ((V_B_WT * Blue + V_G_WT * Green + V_R_WT * Red + HalfV) >> Shift) + 128;
}
}
}
void YUV2RGBSSE_2(unsigned char *Y, unsigned char *U, unsigned char *V, unsigned char *RGB, int Width, int Height, int Stride) {
const int Shift = 13;
const int HalfV = 1 << (Shift - 1);
const int B_Y_WT = 1 << Shift, B_U_WT = 2.03211f * (1 << Shift), B_V_WT = 0;
const int G_Y_WT = 1 << Shift, G_U_WT = -0.39465f * (1 << Shift), G_V_WT = -0.58060f * (1 << Shift);
const int R_Y_WT = 1 << Shift, R_U_WT = 0, R_V_WT = 1.13983 * (1 << Shift);
__m128i Weight_B_Y = _mm_set1_epi32(B_Y_WT), Weight_B_U = _mm_set1_epi32(B_U_WT), Weight_B_V = _mm_set1_epi32(B_V_WT);
__m128i Weight_G_Y = _mm_set1_epi32(G_Y_WT), Weight_G_U = _mm_set1_epi32(G_U_WT), Weight_G_V = _mm_set1_epi32(G_V_WT);
__m128i Weight_R_Y = _mm_set1_epi32(R_Y_WT), Weight_R_U = _mm_set1_epi32(R_U_WT), Weight_R_V = _mm_set1_epi32(R_V_WT);
__m128i Half = _mm_set1_epi32(HalfV);
__m128i C128 = _mm_set1_epi32(128);
__m128i Zero = _mm_setzero_si128();
const int BlockSize = 16, Block = Width / BlockSize;
for (int YY = 0; YY < Height; YY++) {
unsigned char *LinePD = RGB + YY * Stride;
unsigned char *LinePY = Y + YY * Width;
unsigned char *LinePU = U + YY * Width;
unsigned char *LinePV = V + YY * Width;
for (int XX = 0; XX < Block * BlockSize; XX += BlockSize, LinePY += BlockSize, LinePU += BlockSize, LinePV += BlockSize) {
__m128i Blue, Green, Red, YV, UV, VV, Dest1, Dest2, Dest3;
YV = _mm_loadu_si128((__m128i *)(LinePY + 0));
UV = _mm_loadu_si128((__m128i *)(LinePU + 0));
VV = _mm_loadu_si128((__m128i *)(LinePV + 0));
//UV = _mm_sub_epi32(UV, C128);
//VV = _mm_sub_epi32(VV, C128);
__m128i YV16L = _mm_unpacklo_epi8(YV, Zero);
__m128i YV16H = _mm_unpackhi_epi8(YV, Zero);
__m128i YV32LL = _mm_unpacklo_epi16(YV16L, Zero);
__m128i YV32LH = _mm_unpackhi_epi16(YV16L, Zero);
__m128i YV32HL = _mm_unpacklo_epi16(YV16H, Zero);
__m128i YV32HH = _mm_unpackhi_epi16(YV16H, Zero);
__m128i UV16L = _mm_unpacklo_epi8(UV, Zero);
__m128i UV16H = _mm_unpackhi_epi8(UV, Zero);
__m128i UV32LL = _mm_unpacklo_epi16(UV16L, Zero);
__m128i UV32LH = _mm_unpackhi_epi16(UV16L, Zero);
__m128i UV32HL = _mm_unpacklo_epi16(UV16H, Zero);
__m128i UV32HH = _mm_unpackhi_epi16(UV16H, Zero);
UV32LL = _mm_sub_epi32(UV32LL, C128);
UV32LH = _mm_sub_epi32(UV32LH, C128);
UV32HL = _mm_sub_epi32(UV32HL, C128);
UV32HH = _mm_sub_epi32(UV32HH, C128);
__m128i VV16L = _mm_unpacklo_epi8(VV, Zero);
__m128i VV16H = _mm_unpackhi_epi8(VV, Zero);
__m128i VV32LL = _mm_unpacklo_epi16(VV16L, Zero);
__m128i VV32LH = _mm_unpackhi_epi16(VV16L, Zero);
__m128i VV32HL = _mm_unpacklo_epi16(VV16H, Zero);
__m128i VV32HH = _mm_unpackhi_epi16(VV16H, Zero);
VV32LL = _mm_sub_epi32(VV32LL, C128);
VV32LH = _mm_sub_epi32(VV32LH, C128);
VV32HL = _mm_sub_epi32(VV32HL, C128);
VV32HH = _mm_sub_epi32(VV32HH, C128);
__m128i LL_B = _mm_add_epi32(YV32LL, _mm_srai_epi32(_mm_add_epi32(Half, _mm_mullo_epi32(UV32LL, Weight_B_U)), Shift));
__m128i LH_B = _mm_add_epi32(YV32LH, _mm_srai_epi32(_mm_add_epi32(Half, _mm_mullo_epi32(UV32LH, Weight_B_U)), Shift));
__m128i HL_B = _mm_add_epi32(YV32HL, _mm_srai_epi32(_mm_add_epi32(Half, _mm_mullo_epi32(UV32HL, Weight_B_U)), Shift));
__m128i HH_B = _mm_add_epi32(YV32HH, _mm_srai_epi32(_mm_add_epi32(Half, _mm_mullo_epi32(UV32HH, Weight_B_U)), Shift));
Blue = _mm_packus_epi16(_mm_packus_epi32(LL_B, LH_B), _mm_packus_epi32(HL_B, HH_B));
__m128i LL_G = _mm_add_epi32(YV32LL, _mm_srai_epi32(_mm_add_epi32(Half, _mm_add_epi32(_mm_mullo_epi32(Weight_G_U, UV32LL), _mm_mullo_epi32(Weight_G_V, VV32LL))), Shift));
__m128i LH_G = _mm_add_epi32(YV32LH, _mm_srai_epi32(_mm_add_epi32(Half, _mm_add_epi32(_mm_mullo_epi32(Weight_G_U, UV32LH), _mm_mullo_epi32(Weight_G_V, VV32LH))), Shift));
__m128i HL_G = _mm_add_epi32(YV32HL, _mm_srai_epi32(_mm_add_epi32(Half, _mm_add_epi32(_mm_mullo_epi32(Weight_G_U, UV32HL), _mm_mullo_epi32(Weight_G_V, VV32HL))), Shift));
__m128i HH_G = _mm_add_epi32(YV32HH, _mm_srai_epi32(_mm_add_epi32(Half, _mm_add_epi32(_mm_mullo_epi32(Weight_G_U, UV32HH), _mm_mullo_epi32(Weight_G_V, VV32HH))), Shift));
Green = _mm_packus_epi16(_mm_packus_epi32(LL_G, LH_G), _mm_packus_epi32(HL_G, HH_G));
__m128i LL_R = _mm_add_epi32(YV32LL, _mm_srai_epi32(_mm_add_epi32(Half, _mm_mullo_epi32(VV32LL, Weight_R_V)), Shift));
__m128i LH_R = _mm_add_epi32(YV32LH, _mm_srai_epi32(_mm_add_epi32(Half, _mm_mullo_epi32(VV32LH, Weight_R_V)), Shift));
__m128i HL_R = _mm_add_epi32(YV32HL, _mm_srai_epi32(_mm_add_epi32(Half, _mm_mullo_epi32(VV32HL, Weight_R_V)), Shift));
__m128i HH_R = _mm_add_epi32(YV32HH, _mm_srai_epi32(_mm_add_epi32(Half, _mm_mullo_epi32(VV32HH, Weight_R_V)), Shift));
Red = _mm_packus_epi16(_mm_packus_epi32(LL_R, LH_R), _mm_packus_epi32(HL_R, HH_R));
Dest1 = _mm_shuffle_epi8(Blue, _mm_setr_epi8(0, -1, -1, 1, -1, -1, 2, -1, -1, 3, -1, -1, 4, -1, -1, 5));
Dest1 = _mm_or_si128(Dest1, _mm_shuffle_epi8(Green, _mm_setr_epi8(-1, 0, -1, -1, 1, -1, -1, 2, -1, -1, 3, -1, -1, 4, -1, -1)));
Dest1 = _mm_or_si128(Dest1, _mm_shuffle_epi8(Red, _mm_setr_epi8(-1, -1, 0, -1, -1, 1, -1, -1, 2, -1, -1, 3, -1, -1, 4, -1)));
Dest2 = _mm_shuffle_epi8(Blue, _mm_setr_epi8(-1, -1, 6, -1, -1, 7, -1, -1, 8, -1, -1, 9, -1, -1, 10, -1));
Dest2 = _mm_or_si128(Dest2, _mm_shuffle_epi8(Green, _mm_setr_epi8(5, -1, -1, 6, -1, -1, 7, -1, -1, 8, -1, -1, 9, -1, -1, 10)));
Dest2 = _mm_or_si128(Dest2, _mm_shuffle_epi8(Red, _mm_setr_epi8(-1, 5, -1, -1, 6, -1, -1, 7, -1, -1, 8, -1, -1, 9, -1, -1)));
Dest3 = _mm_shuffle_epi8(Blue, _mm_setr_epi8(-1, 11, -1, -1, 12, -1, -1, 13, -1, -1, 14, -1, -1, 15, -1, -1));
Dest3 = _mm_or_si128(Dest3, _mm_shuffle_epi8(Green, _mm_setr_epi8(-1, -1, 11, -1, -1, 12, -1, -1, 13, -1, -1, 14, -1, -1, 15, -1)));
Dest3 = _mm_or_si128(Dest3, _mm_shuffle_epi8(Red, _mm_setr_epi8(10, -1, -1, 11, -1, -1, 12, -1, -1, 13, -1, -1, 14, -1, -1, 15)));
_mm_storeu_si128((__m128i*)(LinePD + (XX / BlockSize) * BlockSize * 3), Dest1);
_mm_storeu_si128((__m128i*)(LinePD + (XX / BlockSize) * BlockSize * 3 + BlockSize), Dest2);
_mm_storeu_si128((__m128i*)(LinePD + (XX / BlockSize) * BlockSize * 3 + BlockSize * 2), Dest3);
}
for (int XX = Block * BlockSize; XX < Width; XX++, LinePU++, LinePV++, LinePY++) {
int YV = LinePY[XX], UV = LinePU[XX] - 128, VV = LinePV[XX] - 128;
LinePD[XX + 0] = ClampToByte(YV + ((B_U_WT * UV + HalfV) >> Shift));
LinePD[XX + 1] = ClampToByte(YV + ((G_U_WT * UV + G_V_WT * VV + HalfV) >> Shift));
LinePD[XX + 2] = ClampToByte(YV + ((R_V_WT * VV + HalfV) >> Shift));
}
}
}
void RGB2YUVSSE_3(unsigned char *RGB, unsigned char *Y, unsigned char *U, unsigned char *V, int Width, int Height, int Stride)
{
const int Shift = 13; // 这里没有绝对值大于1的系数，最大可取2^15次方的放大倍数。
const int HalfV = 1 << (Shift - 1);
const int Y_B_WT = 0.114f * (1 << Shift), Y_G_WT = 0.587f * (1 << Shift), Y_R_WT = (1 << Shift) - Y_B_WT - Y_G_WT, Y_C_WT = 1;
const int U_B_WT = 0.436f * (1 << Shift), U_G_WT = -0.28886f * (1 << Shift), U_R_WT = -(U_B_WT + U_G_WT), U_C_WT = 257;
const int V_B_WT = -0.10001 * (1 << Shift), V_G_WT = -0.51499f * (1 << Shift), V_R_WT = -(V_B_WT + V_G_WT), V_C_WT = 257;
__m128i Weight_YBG = _mm_setr_epi16(Y_B_WT, Y_G_WT, Y_B_WT, Y_G_WT, Y_B_WT, Y_G_WT, Y_B_WT, Y_G_WT);
__m128i Weight_YRC = _mm_setr_epi16(Y_R_WT, Y_C_WT, Y_R_WT, Y_C_WT, Y_R_WT, Y_C_WT, Y_R_WT, Y_C_WT);
__m128i Weight_UBG = _mm_setr_epi16(U_B_WT, U_G_WT, U_B_WT, U_G_WT, U_B_WT, U_G_WT, U_B_WT, U_G_WT);
__m128i Weight_URC = _mm_setr_epi16(U_R_WT, U_C_WT, U_R_WT, U_C_WT, U_R_WT, U_C_WT, U_R_WT, U_C_WT);
__m128i Weight_VBG = _mm_setr_epi16(V_B_WT, V_G_WT, V_B_WT, V_G_WT, V_B_WT, V_G_WT, V_B_WT, V_G_WT);
__m128i Weight_VRC = _mm_setr_epi16(V_R_WT, V_C_WT, V_R_WT, V_C_WT, V_R_WT, V_C_WT, V_R_WT, V_C_WT);
__m128i Half = _mm_setr_epi16(0, HalfV, 0, HalfV, 0, HalfV, 0, HalfV);
__m128i Zero = _mm_setzero_si128();
int BlockSize = 16, Block = Width / BlockSize;
for (int YY = 0; YY < Height; YY++)
{
unsigned char *LinePS = RGB + YY * Stride;
unsigned char *LinePY = Y + YY * Width;
unsigned char *LinePU = U + YY * Width;
unsigned char *LinePV = V + YY * Width;
for (int XX = 0; XX < Block * BlockSize; XX += BlockSize, LinePS += BlockSize * 3)
{
__m128i Src1 = _mm_loadu_si128((__m128i *)(LinePS + 0));
__m128i Src2 = _mm_loadu_si128((__m128i *)(LinePS + 16));
__m128i Src3 = _mm_loadu_si128((__m128i *)(LinePS + 32));
// Src1 : B1 G1 R1 B2 G2 R2 B3 G3 R3 B4 G4 R4 B5 G5 R5 B6
// Src2 : G6 R6 B7 G7 R7 B8 G8 R8 B9 G9 R9 B10 G10 R10 B11 G11
// Src3 : R11 B12 G12 R12 B13 G13 R13 B14 G14 R14 B15 G15 R15 B16 G16 R16
// BGL : B1 G1 B2 G2 B3 G3 B4 G4 B5 G5 B6 0 0 0 0 0
__m128i BGL = _mm_shuffle_epi8(Src1, _mm_setr_epi8(0, 1, 3, 4, 6, 7, 9, 10, 12, 13, 15, -1, -1, -1, -1, -1));
// BGL : B1 G1 B2 G2 B3 G3 B4 G4 B5 G5 B6 G6 B7 G7 B8 G8
BGL = _mm_or_si128(BGL, _mm_shuffle_epi8(Src2, _mm_setr_epi8(-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 2, 3, 5, 6)));
// BGH : B9 G9 B10 G10 B11 G11 0 0 0 0 0 0 0 0 0 0
__m128i BGH = _mm_shuffle_epi8(Src2, _mm_setr_epi8(8, 9, 11, 12, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1));
// BGH : B9 G9 B10 G10 B11 G11 B12 G12 B13 G13 B14 G14 B15 G15 B16 G16
BGH = _mm_or_si128(BGH, _mm_shuffle_epi8(Src3, _mm_setr_epi8(-1, -1, -1, -1, -1, -1, 1, 2, 4, 5, 7, 8, 10, 11, 13, 14)));
// RCL : R1 0 R2 0 R3 0 R4 0 R5 0 0 0 0 0 0 0
__m128i RCL = _mm_shuffle_epi8(Src1, _mm_setr_epi8(2, -1, 5, -1, 8, -1, 11, -1, 14, -1, -1, -1, -1, -1, -1, -1));
// RCL : R1 0 R2 0 R3 0 R4 0 R5 0 R6 0 R7 0 R8 0
RCL = _mm_or_si128(RCL, _mm_shuffle_epi8(Src2, _mm_setr_epi8(-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, -1, 4, -1, 7, -1)));
// RCH : R9 0 R10 0 0 0 0 0 0 0 0 0 0 0 0 0
__m128i RCH = _mm_shuffle_epi8(Src2, _mm_setr_epi8(10, -1, 13, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1));
// RCH : R9 0 R10 0 R11 0 R12 0 R13 0 R14 0 R15 0 R16 0
RCH = _mm_or_si128(RCH, _mm_shuffle_epi8(Src3, _mm_setr_epi8(-1, -1, -1, -1, 0, -1, 3, -1, 6, -1, 9, -1, 12, -1, 15, -1)));
// BGLL : B1 0 G1 0 B2 0 G2 0 B3 0 G3 0 B4 0 G4 0
__m128i BGLL = _mm_unpacklo_epi8(BGL, Zero);
// BGLH : B5 0 G5 0 B6 0 G6 0 B7 0 G7 0 B8 0 G8 0
__m128i BGLH = _mm_unpackhi_epi8(BGL, Zero);
// RCLL : R1 Half Half Half R2 Half Half Half R3 Half Half Half R4 Half Half Half
__m128i RCLL = _mm_or_si128(_mm_unpacklo_epi8(RCL, Zero), Half);
// RCLH : R5 Half Half Half R6 Half Half Half R7 Half Half Half R8 Half Half Half
__m128i RCLH = _mm_or_si128(_mm_unpackhi_epi8(RCL, Zero), Half);
// BGHL : B9 0 G9 0 B10 0 G10 0 B11 0 G11 0 B12 0 G12 0
__m128i BGHL = _mm_unpacklo_epi8(BGH, Zero);
// BGHH : B13 0 G13 0 B14 0 G14 0 B15 0 G15 0 B16 0 G16 0
__m128i BGHH = _mm_unpackhi_epi8(BGH, Zero);
// RCHL : R9 Half Half Half R10 Half Half Half R11 Half Half Half R12 Half Half Half
__m128i RCHL = _mm_or_si128(_mm_unpacklo_epi8(RCH, Zero), Half);
// RCHH : R13 Half Half Half R14 Half Half Half R15 Half Half Half R16 Half Half Half
__m128i RCHH = _mm_or_si128(_mm_unpackhi_epi8(RCH, Zero), Half);
//
__m128i Y_LL = _mm_srai_epi32(_mm_add_epi32(_mm_madd_epi16(BGLL, Weight_YBG), _mm_madd_epi16(RCLL, Weight_YRC)), Shift);
__m128i Y_LH = _mm_srai_epi32(_mm_add_epi32(_mm_madd_epi16(BGLH, Weight_YBG), _mm_madd_epi16(RCLH, Weight_YRC)), Shift);
__m128i Y_HL = _mm_srai_epi32(_mm_add_epi32(_mm_madd_epi16(BGHL, Weight_YBG), _mm_madd_epi16(RCHL, Weight_YRC)), Shift);
__m128i Y_HH = _mm_srai_epi32(_mm_add_epi32(_mm_madd_epi16(BGHH, Weight_YBG), _mm_madd_epi16(RCHH, Weight_YRC)), Shift);
_mm_storeu_si128((__m128i*)(LinePY + XX), _mm_packus_epi16(_mm_packus_epi32(Y_LL, Y_LH), _mm_packus_epi32(Y_HL, Y_HH)));
__m128i U_LL = _mm_srai_epi32(_mm_add_epi32(_mm_madd_epi16(BGLL, Weight_UBG), _mm_madd_epi16(RCLL, Weight_URC)), Shift);
__m128i U_LH = _mm_srai_epi32(_mm_add_epi32(_mm_madd_epi16(BGLH, Weight_UBG), _mm_madd_epi16(RCLH, Weight_URC)), Shift);
__m128i U_HL = _mm_srai_epi32(_mm_add_epi32(_mm_madd_epi16(BGHL, Weight_UBG), _mm_madd_epi16(RCHL, Weight_URC)), Shift);
__m128i U_HH = _mm_srai_epi32(_mm_add_epi32(_mm_madd_epi16(BGHH, Weight_UBG), _mm_madd_epi16(RCHH, Weight_URC)), Shift);
_mm_storeu_si128((__m128i*)(LinePU + XX), _mm_packus_epi16(_mm_packus_epi32(U_LL, U_LH), _mm_packus_epi32(U_HL, U_HH)));
__m128i V_LL = _mm_srai_epi32(_mm_add_epi32(_mm_madd_epi16(BGLL, Weight_VBG), _mm_madd_epi16(RCLL, Weight_VRC)), Shift);
__m128i V_LH = _mm_srai_epi32(_mm_add_epi32(_mm_madd_epi16(BGLH, Weight_VBG), _mm_madd_epi16(RCLH, Weight_VRC)), Shift);
__m128i V_HL = _mm_srai_epi32(_mm_add_epi32(_mm_madd_epi16(BGHL, Weight_VBG), _mm_madd_epi16(RCHL, Weight_VRC)), Shift);
__m128i V_HH = _mm_srai_epi32(_mm_add_epi32(_mm_madd_epi16(BGHH, Weight_VBG), _mm_madd_epi16(RCHH, Weight_VRC)), Shift);
_mm_storeu_si128((__m128i*)(LinePV + XX), _mm_packus_epi16(_mm_packus_epi32(V_LL, V_LH), _mm_packus_epi32(V_HL, V_HH)));
}
for (int XX = Block * BlockSize; XX < Width; XX++, LinePS += 3) {
int Blue = LinePS[0], Green = LinePS[1], Red = LinePS[2];
LinePY[XX] = (Y_B_WT * Blue + Y_G_WT * Green + Y_R_WT * Red + Y_C_WT * HalfV) >> Shift;
LinePU[XX] = (U_B_WT * Blue + U_G_WT * Green + U_R_WT * Red + U_C_WT * HalfV) >> Shift;
LinePV[XX] = (V_B_WT * Blue + V_G_WT * Green + V_R_WT * Red + V_C_WT * HalfV) >> Shift;
}
}
}
void YUV2RGBSSE_3(unsigned char *Y, unsigned char *U, unsigned char *V, unsigned char *RGB, int Width, int Height, int Stride) {
const int Shift = 13;
const int HalfV = 1 << (Shift - 1);
const int B_Y_WT = 1 << Shift, B_U_WT = 2.03211f * (1 << Shift), B_V_WT = 0;
const int G_Y_WT = 1 << Shift, G_U_WT = -0.39465f * (1 << Shift), G_V_WT = -0.58060f * (1 << Shift);
const int R_Y_WT = 1 << Shift, R_U_WT = 0, R_V_WT = 1.13983 * (1 << Shift);
__m128i Weight_B_Y = _mm_set1_epi32(B_Y_WT), Weight_B_U = _mm_set1_epi32(B_U_WT), Weight_B_V = _mm_set1_epi32(B_V_WT);
__m128i Weight_G_Y = _mm_set1_epi32(G_Y_WT), Weight_G_U = _mm_set1_epi32(G_U_WT), Weight_G_V = _mm_set1_epi32(G_V_WT);
__m128i Weight_R_Y = _mm_set1_epi32(R_Y_WT), Weight_R_U = _mm_set1_epi32(R_U_WT), Weight_R_V = _mm_set1_epi32(R_V_WT);
__m128i Half = _mm_set1_epi32(HalfV);
__m128i C128 = _mm_set1_epi32(128);
__m128i Zero = _mm_setzero_si128();
const int BlockSize = 16, Block = Width / BlockSize;
for (int YY = 0; YY < Height; YY++) {
unsigned char *LinePD = RGB + YY * Stride;
unsigned char *LinePY = Y + YY * Width;
unsigned char *LinePU = U + YY * Width;
unsigned char *LinePV = V + YY * Width;
for (int XX = 0; XX < Block * BlockSize; XX += BlockSize, LinePY += BlockSize, LinePU += BlockSize, LinePV += BlockSize) {
__m128i Blue, Green, Red, YV, UV, VV, Dest1, Dest2, Dest3;
YV = _mm_loadu_si128((__m128i *)(LinePY + 0));
UV = _mm_loadu_si128((__m128i *)(LinePU + 0));
VV = _mm_loadu_si128((__m128i *)(LinePV + 0));
__m128i YV16L = _mm_unpacklo_epi8(YV, Zero);
__m128i YV16H = _mm_unpackhi_epi8(YV, Zero);
__m128i YV32LL = _mm_unpacklo_epi16(YV16L, Zero);
__m128i YV32LH = _mm_unpackhi_epi16(YV16L, Zero);
__m128i YV32HL = _mm_unpacklo_epi16(YV16H, Zero);
__m128i YV32HH = _mm_unpackhi_epi16(YV16H, Zero);
__m128i UV16L = _mm_unpacklo_epi8(UV, Zero);
__m128i UV16H = _mm_unpackhi_epi8(UV, Zero);
__m128i UV32LL = _mm_unpacklo_epi16(UV16L, Zero);
__m128i UV32LH = _mm_unpackhi_epi16(UV16L, Zero);
__m128i UV32HL = _mm_unpacklo_epi16(UV16H, Zero);
__m128i UV32HH = _mm_unpackhi_epi16(UV16H, Zero);
UV32LL = _mm_sub_epi32(UV32LL, C128);
UV32LH = _mm_sub_epi32(UV32LH, C128);
UV32HL = _mm_sub_epi32(UV32HL, C128);
UV32HH = _mm_sub_epi32(UV32HH, C128);
__m128i VV16L = _mm_unpacklo_epi8(VV, Zero);
__m128i VV16H = _mm_unpackhi_epi8(VV, Zero);
__m128i VV32LL = _mm_unpacklo_epi16(VV16L, Zero);
__m128i VV32LH = _mm_unpackhi_epi16(VV16L, Zero);
__m128i VV32HL = _mm_unpacklo_epi16(VV16H, Zero);
__m128i VV32HH = _mm_unpackhi_epi16(VV16H, Zero);
VV32LL = _mm_sub_epi32(VV32LL, C128);
VV32LH = _mm_sub_epi32(VV32LH, C128);
VV32HL = _mm_sub_epi32(VV32HL, C128);
VV32HH = _mm_sub_epi32(VV32HH, C128);
__m128i LL_B = _mm_add_epi32(YV32LL, _mm_srai_epi32(_mm_add_epi32(Half, _mm_mullo_epi32(UV32LL, Weight_B_U)), Shift));
__m128i LH_B = _mm_add_epi32(YV32LH, _mm_srai_epi32(_mm_add_epi32(Half, _mm_mullo_epi32(UV32LH, Weight_B_U)), Shift));
__m128i HL_B = _mm_add_epi32(YV32HL, _mm_srai_epi32(_mm_add_epi32(Half, _mm_mullo_epi32(UV32HL, Weight_B_U)), Shift));
__m128i HH_B = _mm_add_epi32(YV32HH, _mm_srai_epi32(_mm_add_epi32(Half, _mm_mullo_epi32(UV32HH, Weight_B_U)), Shift));
Blue = _mm_packus_epi16(_mm_packus_epi32(LL_B, LH_B), _mm_packus_epi32(HL_B, HH_B));
__m128i LL_G = _mm_add_epi32(YV32LL, _mm_srai_epi32(_mm_add_epi32(Half, _mm_add_epi32(_mm_mullo_epi32(Weight_G_U, UV32LL), _mm_mullo_epi32(Weight_G_V, VV32LL))), Shift));
__m128i LH_G = _mm_add_epi32(YV32LH, _mm_srai_epi32(_mm_add_epi32(Half, _mm_add_epi32(_mm_mullo_epi32(Weight_G_U, UV32LH), _mm_mullo_epi32(Weight_G_V, VV32LH))), Shift));
__m128i HL_G = _mm_add_epi32(YV32HL, _mm_srai_epi32(_mm_add_epi32(Half, _mm_add_epi32(_mm_mullo_epi32(Weight_G_U, UV32HL), _mm_mullo_epi32(Weight_G_V, VV32HL))), Shift));
__m128i HH_G = _mm_add_epi32(YV32HH, _mm_srai_epi32(_mm_add_epi32(Half, _mm_add_epi32(_mm_mullo_epi32(Weight_G_U, UV32HH), _mm_mullo_epi32(Weight_G_V, VV32HH))), Shift));
Green = _mm_packus_epi16(_mm_packus_epi32(LL_G, LH_G), _mm_packus_epi32(HL_G, HH_G));
__m128i LL_R = _mm_add_epi32(YV32LL, _mm_srai_epi32(_mm_add_epi32(Half, _mm_mullo_epi32(VV32LL, Weight_R_V)), Shift));
__m128i LH_R = _mm_add_epi32(YV32LH, _mm_srai_epi32(_mm_add_epi32(Half, _mm_mullo_epi32(VV32LH, Weight_R_V)), Shift));
__m128i HL_R = _mm_add_epi32(YV32HL, _mm_srai_epi32(_mm_add_epi32(Half, _mm_mullo_epi32(VV32HL, Weight_R_V)), Shift));
__m128i HH_R = _mm_add_epi32(YV32HH, _mm_srai_epi32(_mm_add_epi32(Half, _mm_mullo_epi32(VV32HH, Weight_R_V)), Shift));
Red = _mm_packus_epi16(_mm_packus_epi32(LL_R, LH_R), _mm_packus_epi32(HL_R, HH_R));
Dest1 = _mm_shuffle_epi8(Blue, _mm_setr_epi8(0, -1, -1, 1, -1, -1, 2, -1, -1, 3, -1, -1, 4, -1, -1, 5));
Dest1 = _mm_or_si128(Dest1, _mm_shuffle_epi8(Green, _mm_setr_epi8(-1, 0, -1, -1, 1, -1, -1, 2, -1, -1, 3, -1, -1, 4, -1, -1)));
Dest1 = _mm_or_si128(Dest1, _mm_shuffle_epi8(Red, _mm_setr_epi8(-1, -1, 0, -1, -1, 1, -1, -1, 2, -1, -1, 3, -1, -1, 4, -1)));
Dest2 = _mm_shuffle_epi8(Blue, _mm_setr_epi8(-1, -1, 6, -1, -1, 7, -1, -1, 8, -1, -1, 9, -1, -1, 10, -1));
Dest2 = _mm_or_si128(Dest2, _mm_shuffle_epi8(Green, _mm_setr_epi8(5, -1, -1, 6, -1, -1, 7, -1, -1, 8, -1, -1, 9, -1, -1, 10)));
Dest2 = _mm_or_si128(Dest2, _mm_shuffle_epi8(Red, _mm_setr_epi8(-1, 5, -1, -1, 6, -1, -1, 7, -1, -1, 8, -1, -1, 9, -1, -1)));
Dest3 = _mm_shuffle_epi8(Blue, _mm_setr_epi8(-1, 11, -1, -1, 12, -1, -1, 13, -1, -1, 14, -1, -1, 15, -1, -1));
Dest3 = _mm_or_si128(Dest3, _mm_shuffle_epi8(Green, _mm_setr_epi8(-1, -1, 11, -1, -1, 12, -1, -1, 13, -1, -1, 14, -1, -1, 15, -1)));
Dest3 = _mm_or_si128(Dest3, _mm_shuffle_epi8(Red, _mm_setr_epi8(10, -1, -1, 11, -1, -1, 12, -1, -1, 13, -1, -1, 14, -1, -1, 15)));
_mm_storeu_si128((__m128i*)(LinePD + (XX / BlockSize) * BlockSize * 3), Dest1);
_mm_storeu_si128((__m128i*)(LinePD + (XX / BlockSize) * BlockSize * 3 + BlockSize), Dest2);
_mm_storeu_si128((__m128i*)(LinePD + (XX / BlockSize) * BlockSize * 3 + BlockSize * 2), Dest3);
}
for (int XX = Block * BlockSize; XX < Width; XX++, LinePU++, LinePV++, LinePY++) {
int YV = LinePY[XX], UV = LinePU[XX] - 128, VV = LinePV[XX] - 128;
LinePD[XX + 0] = ClampToByte(YV + ((B_U_WT * UV + HalfV) >> Shift));
LinePD[XX + 1] = ClampToByte(YV + ((G_U_WT * UV + G_V_WT * VV + HalfV) >> Shift));
LinePD[XX + 2] = ClampToByte(YV + ((R_V_WT * VV + HalfV) >> Shift));
}
}
}
const int Shift = 13; // 这里没有绝对值大于1的系数，最大可取2^15次方的放大倍数。
const int HalfV = 1 << (Shift - 1);
const int Y_B_WT = 0.114f * (1 << Shift), Y_G_WT = 0.587f * (1 << Shift), Y_R_WT = (1 << Shift) - Y_B_WT - Y_G_WT, Y_C_WT = 1;
const int U_B_WT = 0.436f * (1 << Shift), U_G_WT = -0.28886f * (1 << Shift), U_R_WT = -(U_B_WT + U_G_WT), U_C_WT = 257;
const int V_B_WT = -0.10001 * (1 << Shift), V_G_WT = -0.51499f * (1 << Shift), V_R_WT = -(V_B_WT + V_G_WT), V_C_WT = 257;
__m128i Weight_YBG = _mm_setr_epi16(Y_B_WT, Y_G_WT, Y_B_WT, Y_G_WT, Y_B_WT, Y_G_WT, Y_B_WT, Y_G_WT);
__m128i Weight_YRC = _mm_setr_epi16(Y_R_WT, Y_C_WT, Y_R_WT, Y_C_WT, Y_R_WT, Y_C_WT, Y_R_WT, Y_C_WT);
__m128i Weight_UBG = _mm_setr_epi16(U_B_WT, U_G_WT, U_B_WT, U_G_WT, U_B_WT, U_G_WT, U_B_WT, U_G_WT);
__m128i Weight_URC = _mm_setr_epi16(U_R_WT, U_C_WT, U_R_WT, U_C_WT, U_R_WT, U_C_WT, U_R_WT, U_C_WT);
__m128i Weight_VBG = _mm_setr_epi16(V_B_WT, V_G_WT, V_B_WT, V_G_WT, V_B_WT, V_G_WT, V_B_WT, V_G_WT);
__m128i Weight_VRC = _mm_setr_epi16(V_R_WT, V_C_WT, V_R_WT, V_C_WT, V_R_WT, V_C_WT, V_R_WT, V_C_WT);
__m128i Half1 = _mm_setr_epi16(0, HalfV, 0, HalfV, 0, HalfV, 0, HalfV);
__m128i Zero = _mm_setzero_si128();
const int B_Y_WT = 1 << Shift, B_U_WT = 2.03211f * (1 << Shift), B_V_WT = 0;
const int G_Y_WT = 1 << Shift, G_U_WT = -0.39465f * (1 << Shift), G_V_WT = -0.58060f * (1 << Shift);
const int R_Y_WT = 1 << Shift, R_U_WT = 0, R_V_WT = 1.13983 * (1 << Shift);
__m128i Weight_B_Y = _mm_set1_epi32(B_Y_WT), Weight_B_U = _mm_set1_epi32(B_U_WT), Weight_B_V = _mm_set1_epi32(B_V_WT);
__m128i Weight_G_Y = _mm_set1_epi32(G_Y_WT), Weight_G_U = _mm_set1_epi32(G_U_WT), Weight_G_V = _mm_set1_epi32(G_V_WT);
__m128i Weight_R_Y = _mm_set1_epi32(R_Y_WT), Weight_R_U = _mm_set1_epi32(R_U_WT), Weight_R_V = _mm_set1_epi32(R_V_WT);
__m128i Half2 = _mm_set1_epi32(HalfV);
__m128i C128 = _mm_set1_epi32(128);
int BlockSize, Block;
void _RGB2YUV(unsigned char *RGB, const int32_t Width, const int32_t Height, const int32_t start_row, const int32_t thread_stride, const int32_t Stride, unsigned char *Y, unsigned char *U, unsigned char *V)
{
for (int YY = start_row; YY < start_row + thread_stride; YY++)
{
unsigned char *LinePS = RGB + YY * Stride;
unsigned char *LinePY = Y + YY * Width;
unsigned char *LinePU = U + YY * Width;
unsigned char *LinePV = V + YY * Width;
for (int XX = 0; XX < Block * BlockSize; XX += BlockSize, LinePS += BlockSize * 3)
{
__m128i Src1 = _mm_loadu_si128((__m128i *)(LinePS + 0));
__m128i Src2 = _mm_loadu_si128((__m128i *)(LinePS + 16));
__m128i Src3 = _mm_loadu_si128((__m128i *)(LinePS + 32));
// Src1 : B1 G1 R1 B2 G2 R2 B3 G3 R3 B4 G4 R4 B5 G5 R5 B6
// Src2 : G6 R6 B7 G7 R7 B8 G8 R8 B9 G9 R9 B10 G10 R10 B11 G11
// Src3 : R11 B12 G12 R12 B13 G13 R13 B14 G14 R14 B15 G15 R15 B16 G16 R16
// BGL : B1 G1 B2 G2 B3 G3 B4 G4 B5 G5 B6 0 0 0 0 0
__m128i BGL = _mm_shuffle_epi8(Src1, _mm_setr_epi8(0, 1, 3, 4, 6, 7, 9, 10, 12, 13, 15, -1, -1, -1, -1, -1));
// BGL : B1 G1 B2 G2 B3 G3 B4 G4 B5 G5 B6 G6 B7 G7 B8 G8
BGL = _mm_or_si128(BGL, _mm_shuffle_epi8(Src2, _mm_setr_epi8(-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 2, 3, 5, 6)));
// BGH : B9 G9 B10 G10 B11 G11 0 0 0 0 0 0 0 0 0 0
__m128i BGH = _mm_shuffle_epi8(Src2, _mm_setr_epi8(8, 9, 11, 12, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1));
// BGH : B9 G9 B10 G10 B11 G11 B12 G12 B13 G13 B14 G14 B15 G15 B16 G16
BGH = _mm_or_si128(BGH, _mm_shuffle_epi8(Src3, _mm_setr_epi8(-1, -1, -1, -1, -1, -1, 1, 2, 4, 5, 7, 8, 10, 11, 13, 14)));
// RCL : R1 0 R2 0 R3 0 R4 0 R5 0 0 0 0 0 0 0
__m128i RCL = _mm_shuffle_epi8(Src1, _mm_setr_epi8(2, -1, 5, -1, 8, -1, 11, -1, 14, -1, -1, -1, -1, -1, -1, -1));
// RCL : R1 0 R2 0 R3 0 R4 0 R5 0 R6 0 R7 0 R8 0
RCL = _mm_or_si128(RCL, _mm_shuffle_epi8(Src2, _mm_setr_epi8(-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, -1, 4, -1, 7, -1)));
// RCH : R9 0 R10 0 0 0 0 0 0 0 0 0 0 0 0 0
__m128i RCH = _mm_shuffle_epi8(Src2, _mm_setr_epi8(10, -1, 13, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1));
// RCH : R9 0 R10 0 R11 0 R12 0 R13 0 R14 0 R15 0 R16 0
RCH = _mm_or_si128(RCH, _mm_shuffle_epi8(Src3, _mm_setr_epi8(-1, -1, -1, -1, 0, -1, 3, -1, 6, -1, 9, -1, 12, -1, 15, -1)));
// BGLL : B1 0 G1 0 B2 0 G2 0 B3 0 G3 0 B4 0 G4 0
__m128i BGLL = _mm_unpacklo_epi8(BGL, Zero);
// BGLH : B5 0 G5 0 B6 0 G6 0 B7 0 G7 0 B8 0 G8 0
__m128i BGLH = _mm_unpackhi_epi8(BGL, Zero);
// RCLL : R1 Half Half Half R2 Half Half Half R3 Half Half Half R4 Half Half Half
__m128i RCLL = _mm_or_si128(_mm_unpacklo_epi8(RCL, Zero), Half1);
// RCLH : R5 Half Half Half R6 Half Half Half R7 Half Half Half R8 Half Half Half
__m128i RCLH = _mm_or_si128(_mm_unpackhi_epi8(RCL, Zero), Half1);
// BGHL : B9 0 G9 0 B10 0 G10 0 B11 0 G11 0 B12 0 G12 0
__m128i BGHL = _mm_unpacklo_epi8(BGH, Zero);
// BGHH : B13 0 G13 0 B14 0 G14 0 B15 0 G15 0 B16 0 G16 0
__m128i BGHH = _mm_unpackhi_epi8(BGH, Zero);
// RCHL : R9 Half Half Half R10 Half Half Half R11 Half Half Half R12 Half Half Half
__m128i RCHL = _mm_or_si128(_mm_unpacklo_epi8(RCH, Zero), Half1);
// RCHH : R13 Half Half Half R14 Half Half Half R15 Half Half Half R16 Half Half Half
__m128i RCHH = _mm_or_si128(_mm_unpackhi_epi8(RCH, Zero), Half1);
//
__m128i Y_LL = _mm_srai_epi32(_mm_add_epi32(_mm_madd_epi16(BGLL, Weight_YBG), _mm_madd_epi16(RCLL, Weight_YRC)), Shift);
__m128i Y_LH = _mm_srai_epi32(_mm_add_epi32(_mm_madd_epi16(BGLH, Weight_YBG), _mm_madd_epi16(RCLH, Weight_YRC)), Shift);
__m128i Y_HL = _mm_srai_epi32(_mm_add_epi32(_mm_madd_epi16(BGHL, Weight_YBG), _mm_madd_epi16(RCHL, Weight_YRC)), Shift);
__m128i Y_HH = _mm_srai_epi32(_mm_add_epi32(_mm_madd_epi16(BGHH, Weight_YBG), _mm_madd_epi16(RCHH, Weight_YRC)), Shift);
_mm_storeu_si128((__m128i*)(LinePY + XX), _mm_packus_epi16(_mm_packus_epi32(Y_LL, Y_LH), _mm_packus_epi32(Y_HL, Y_HH)));
__m128i U_LL = _mm_srai_epi32(_mm_add_epi32(_mm_madd_epi16(BGLL, Weight_UBG), _mm_madd_epi16(RCLL, Weight_URC)), Shift);
__m128i U_LH = _mm_srai_epi32(_mm_add_epi32(_mm_madd_epi16(BGLH, Weight_UBG), _mm_madd_epi16(RCLH, Weight_URC)), Shift);
__m128i U_HL = _mm_srai_epi32(_mm_add_epi32(_mm_madd_epi16(BGHL, Weight_UBG), _mm_madd_epi16(RCHL, Weight_URC)), Shift);
__m128i U_HH = _mm_srai_epi32(_mm_add_epi32(_mm_madd_epi16(BGHH, Weight_UBG), _mm_madd_epi16(RCHH, Weight_URC)), Shift);
_mm_storeu_si128((__m128i*)(LinePU + XX), _mm_packus_epi16(_mm_packus_epi32(U_LL, U_LH), _mm_packus_epi32(U_HL, U_HH)));
__m128i V_LL = _mm_srai_epi32(_mm_add_epi32(_mm_madd_epi16(BGLL, Weight_VBG), _mm_madd_epi16(RCLL, Weight_VRC)), Shift);
__m128i V_LH = _mm_srai_epi32(_mm_add_epi32(_mm_madd_epi16(BGLH, Weight_VBG), _mm_madd_epi16(RCLH, Weight_VRC)), Shift);
__m128i V_HL = _mm_srai_epi32(_mm_add_epi32(_mm_madd_epi16(BGHL, Weight_VBG), _mm_madd_epi16(RCHL, Weight_VRC)), Shift);
__m128i V_HH = _mm_srai_epi32(_mm_add_epi32(_mm_madd_epi16(BGHH, Weight_VBG), _mm_madd_epi16(RCHH, Weight_VRC)), Shift);
_mm_storeu_si128((__m128i*)(LinePV + XX), _mm_packus_epi16(_mm_packus_epi32(V_LL, V_LH), _mm_packus_epi32(V_HL, V_HH)));
}
for (int XX = Block * BlockSize; XX < Width; XX++, LinePS += 3) {
int Blue = LinePS[0], Green = LinePS[1], Red = LinePS[2];
LinePY[XX] = (Y_B_WT * Blue + Y_G_WT * Green + Y_R_WT * Red + Y_C_WT * HalfV) >> Shift;
LinePU[XX] = (U_B_WT * Blue + U_G_WT * Green + U_R_WT * Red + U_C_WT * HalfV) >> Shift;
LinePV[XX] = (V_B_WT * Blue + V_G_WT * Green + V_R_WT * Red + V_C_WT * HalfV) >> Shift;
}
}
}
void _YUV2RGB(const int32_t Width, const int32_t Height, const int32_t start_row, const int32_t thread_stride, const int32_t Stride, unsigned char *Y, unsigned char *U, unsigned char *V, unsigned char *RGB) {
for (int YY = start_row; YY < start_row + thread_stride; YY++){
unsigned char *LinePD = RGB + YY * Stride;
unsigned char *LinePY = Y + YY * Width;
unsigned char *LinePU = U + YY * Width;
unsigned char *LinePV = V + YY * Width;
for (int XX = 0; XX < Block * BlockSize; XX += BlockSize, LinePY += BlockSize, LinePU += BlockSize, LinePV += BlockSize) {
__m128i Blue, Green, Red, YV, UV, VV, Dest1, Dest2, Dest3;
YV = _mm_loadu_si128((__m128i *)(LinePY + 0));
UV = _mm_loadu_si128((__m128i *)(LinePU + 0));
VV = _mm_loadu_si128((__m128i *)(LinePV + 0));
__m128i YV16L = _mm_unpacklo_epi8(YV, Zero);
__m128i YV16H = _mm_unpackhi_epi8(YV, Zero);
__m128i YV32LL = _mm_unpacklo_epi16(YV16L, Zero);
__m128i YV32LH = _mm_unpackhi_epi16(YV16L, Zero);
__m128i YV32HL = _mm_unpacklo_epi16(YV16H, Zero);
__m128i YV32HH = _mm_unpackhi_epi16(YV16H, Zero);
__m128i UV16L = _mm_unpacklo_epi8(UV, Zero);
__m128i UV16H = _mm_unpackhi_epi8(UV, Zero);
__m128i UV32LL = _mm_unpacklo_epi16(UV16L, Zero);
__m128i UV32LH = _mm_unpackhi_epi16(UV16L, Zero);
__m128i UV32HL = _mm_unpacklo_epi16(UV16H, Zero);
__m128i UV32HH = _mm_unpackhi_epi16(UV16H, Zero);
UV32LL = _mm_sub_epi32(UV32LL, C128);
UV32LH = _mm_sub_epi32(UV32LH, C128);
UV32HL = _mm_sub_epi32(UV32HL, C128);
UV32HH = _mm_sub_epi32(UV32HH, C128);
__m128i VV16L = _mm_unpacklo_epi8(VV, Zero);
__m128i VV16H = _mm_unpackhi_epi8(VV, Zero);
__m128i VV32LL = _mm_unpacklo_epi16(VV16L, Zero);
__m128i VV32LH = _mm_unpackhi_epi16(VV16L, Zero);
__m128i VV32HL = _mm_unpacklo_epi16(VV16H, Zero);
__m128i VV32HH = _mm_unpackhi_epi16(VV16H, Zero);
VV32LL = _mm_sub_epi32(VV32LL, C128);
VV32LH = _mm_sub_epi32(VV32LH, C128);
VV32HL = _mm_sub_epi32(VV32HL, C128);
VV32HH = _mm_sub_epi32(VV32HH, C128);
__m128i LL_B = _mm_add_epi32(YV32LL, _mm_srai_epi32(_mm_add_epi32(Half2, _mm_mullo_epi32(UV32LL, Weight_B_U)), Shift));
__m128i LH_B = _mm_add_epi32(YV32LH, _mm_srai_epi32(_mm_add_epi32(Half2, _mm_mullo_epi32(UV32LH, Weight_B_U)), Shift));
__m128i HL_B = _mm_add_epi32(YV32HL, _mm_srai_epi32(_mm_add_epi32(Half2, _mm_mullo_epi32(UV32HL, Weight_B_U)), Shift));
__m128i HH_B = _mm_add_epi32(YV32HH, _mm_srai_epi32(_mm_add_epi32(Half2, _mm_mullo_epi32(UV32HH, Weight_B_U)), Shift));
Blue = _mm_packus_epi16(_mm_packus_epi32(LL_B, LH_B), _mm_packus_epi32(HL_B, HH_B));
__m128i LL_G = _mm_add_epi32(YV32LL, _mm_srai_epi32(_mm_add_epi32(Half2, _mm_add_epi32(_mm_mullo_epi32(Weight_G_U, UV32LL), _mm_mullo_epi32(Weight_G_V, VV32LL))), Shift));
__m128i LH_G = _mm_add_epi32(YV32LH, _mm_srai_epi32(_mm_add_epi32(Half2, _mm_add_epi32(_mm_mullo_epi32(Weight_G_U, UV32LH), _mm_mullo_epi32(Weight_G_V, VV32LH))), Shift));
__m128i HL_G = _mm_add_epi32(YV32HL, _mm_srai_epi32(_mm_add_epi32(Half2, _mm_add_epi32(_mm_mullo_epi32(Weight_G_U, UV32HL), _mm_mullo_epi32(Weight_G_V, VV32HL))), Shift));
__m128i HH_G = _mm_add_epi32(YV32HH, _mm_srai_epi32(_mm_add_epi32(Half2, _mm_add_epi32(_mm_mullo_epi32(Weight_G_U, UV32HH), _mm_mullo_epi32(Weight_G_V, VV32HH))), Shift));
Green = _mm_packus_epi16(_mm_packus_epi32(LL_G, LH_G), _mm_packus_epi32(HL_G, HH_G));
__m128i LL_R = _mm_add_epi32(YV32LL, _mm_srai_epi32(_mm_add_epi32(Half2, _mm_mullo_epi32(VV32LL, Weight_R_V)), Shift));
__m128i LH_R = _mm_add_epi32(YV32LH, _mm_srai_epi32(_mm_add_epi32(Half2, _mm_mullo_epi32(VV32LH, Weight_R_V)), Shift));
__m128i HL_R = _mm_add_epi32(YV32HL, _mm_srai_epi32(_mm_add_epi32(Half2, _mm_mullo_epi32(VV32HL, Weight_R_V)), Shift));
__m128i HH_R = _mm_add_epi32(YV32HH, _mm_srai_epi32(_mm_add_epi32(Half2, _mm_mullo_epi32(VV32HH, Weight_R_V)), Shift));
Red = _mm_packus_epi16(_mm_packus_epi32(LL_R, LH_R), _mm_packus_epi32(HL_R, HH_R));
Dest1 = _mm_shuffle_epi8(Blue, _mm_setr_epi8(0, -1, -1, 1, -1, -1, 2, -1, -1, 3, -1, -1, 4, -1, -1, 5));
Dest1 = _mm_or_si128(Dest1, _mm_shuffle_epi8(Green, _mm_setr_epi8(-1, 0, -1, -1, 1, -1, -1, 2, -1, -1, 3, -1, -1, 4, -1, -1)));
Dest1 = _mm_or_si128(Dest1, _mm_shuffle_epi8(Red, _mm_setr_epi8(-1, -1, 0, -1, -1, 1, -1, -1, 2, -1, -1, 3, -1, -1, 4, -1)));
Dest2 = _mm_shuffle_epi8(Blue, _mm_setr_epi8(-1, -1, 6, -1, -1, 7, -1, -1, 8, -1, -1, 9, -1, -1, 10, -1));
Dest2 = _mm_or_si128(Dest2, _mm_shuffle_epi8(Green, _mm_setr_epi8(5, -1, -1, 6, -1, -1, 7, -1, -1, 8, -1, -1, 9, -1, -1, 10)));
Dest2 = _mm_or_si128(Dest2, _mm_shuffle_epi8(Red, _mm_setr_epi8(-1, 5, -1, -1, 6, -1, -1, 7, -1, -1, 8, -1, -1, 9, -1, -1)));
Dest3 = _mm_shuffle_epi8(Blue, _mm_setr_epi8(-1, 11, -1, -1, 12, -1, -1, 13, -1, -1, 14, -1, -1, 15, -1, -1));
Dest3 = _mm_or_si128(Dest3, _mm_shuffle_epi8(Green, _mm_setr_epi8(-1, -1, 11, -1, -1, 12, -1, -1, 13, -1, -1, 14, -1, -1, 15, -1)));
Dest3 = _mm_or_si128(Dest3, _mm_shuffle_epi8(Red, _mm_setr_epi8(10, -1, -1, 11, -1, -1, 12, -1, -1, 13, -1, -1, 14, -1, -1, 15)));
_mm_storeu_si128((__m128i*)(LinePD + (XX / BlockSize) * BlockSize * 3), Dest1);
_mm_storeu_si128((__m128i*)(LinePD + (XX / BlockSize) * BlockSize * 3 + BlockSize), Dest2);
_mm_storeu_si128((__m128i*)(LinePD + (XX / BlockSize) * BlockSize * 3 + BlockSize * 2), Dest3);
}
for (int XX = Block * BlockSize; XX < Width; XX++, LinePU++, LinePV++, LinePY++) {
int YV = LinePY[XX], UV = LinePU[XX] - 128, VV = LinePV[XX] - 128;
LinePD[XX + 0] = ClampToByte(YV + ((B_U_WT * UV + HalfV) >> Shift));
LinePD[XX + 1] = ClampToByte(YV + ((G_U_WT * UV + G_V_WT * VV + HalfV) >> Shift));
LinePD[XX + 2] = ClampToByte(YV + ((R_V_WT * VV + HalfV) >> Shift));
}
}
}
void RGB2YUVSSE_4(unsigned char *RGB, unsigned char *Y, unsigned char *U, unsigned char *V, int Width, int Height, int Stride) {
BlockSize = 16, Block = (Width) / BlockSize;
const int32_t hw_concur = std::min(Height >> 4, static_cast<int32_t>(std::thread::hardware_concurrency()));
std::vector<std::future<void>> fut(hw_concur);
const int thread_stride = (Height - 1) / hw_concur + 1;
int i = 0, start = 0;
for (; i < std::min(Height, hw_concur); i++, start += thread_stride)
{
fut[i] = std::async(std::launch::async, _RGB2YUV, RGB, Width, Height, start, thread_stride, Stride, Y, U, V);
}
for (int j = 0; j < i; ++j)
fut[j].wait();
}
void YUV2RGBSSE_4(unsigned char *Y, unsigned char *U, unsigned char *V, unsigned char *RGB, int Width, int Height, int Stride) {
BlockSize = 16, Block = (Width) / BlockSize;
const int32_t hw_concur = std::min(Height >> 4, static_cast<int32_t>(std::thread::hardware_concurrency()));
std::vector<std::future<void>> fut(hw_concur);
const int thread_stride = (Height - 1) / hw_concur + 1;
int i = 0, start = 0;
for (; i < std::min(Height, hw_concur); i++, start += thread_stride)
{
fut[i] = std::async(std::launch::async, _YUV2RGB, Width, Height, start, thread_stride, Stride, Y, U, V, RGB);
}
for (int j = 0; j < i; ++j)
fut[j].wait();
}
int main() {
Mat src = imread("car.jpg");
int Height = src.rows;
int Width = src.cols;
cout << "picture size:" << Height << "x" << Width << endl;
unsigned char *Src = src.data;
unsigned char *Dest = new unsigned char[Height * Width * 3];
unsigned char *Y = new unsigned char[Height * Width];
unsigned char *U = new unsigned char[Height * Width];
unsigned char *V = new unsigned char[Height * Width];
int Stride = Width * 3;
int64 st = cvGetTickCount();
for (int i = 0; i < 1000; i++) {
RGB2YUVSSE_3(Src, Y, U, V, Width, Height, Stride);
timeval start_time,end_time;
// gettimeofday(&start_time, NULL);
// YUV2RGBSSE_4(Y, U, V, Dest, Width, Height, Stride); //用了四个线程，而sws_scale只用一个
// gettimeofday(&end_time, NULL);
// float use_time = 1000 * (end_time.tv_sec - start_time.tv_sec) +
// (end_time.tv_usec - start_time.tv_usec) / 1000.0;
// cout << "use_time:" << use_time << "ms" << endl; //640x480时sws_scale,yuv2bgr只需要1ms左右
gettimeofday(&start_time, NULL);
AVFrame avframe,dst;
memset(&dst, 0, sizeof(dst));
int out_size = av_image_get_buffer_size(AV_PIX_FMT_BGR24,Width,Height,1);
uint8_t *BGR24_buffer = (uint8_t *)malloc(out_size);
av_image_fill_arrays(dst.data, dst.linesize, BGR24_buffer, AV_PIX_FMT_BGR24, Width, Height, 1);
//avpicture_fill((AVPicture *)&dst, BGR24_buffer, AV_PIX_FMT_BGR24, out_width, out_height);//初始化dst
int in_size = av_image_get_buffer_size(AV_PIX_FMT_YUV420P,Width,Height,1);
uint8_t *yuv_buffer = (uint8_t *)malloc(in_size);
av_image_fill_arrays(avframe.data, avframe.linesize, yuv_buffer, AV_PIX_FMT_YUV420P, Width, Height, 1);
avframe.data[0] = Y;
avframe.data[1] = U;
avframe.data[2] = V;
avframe.width = Width;
avframe.height = Height;
avframe.format = AV_PIX_FMT_YUV420P;
struct SwsContext *convert_ctx=NULL;
convert_ctx = sws_getContext(avframe.width, avframe.height, (enum AVPixelFormat)avframe.format, //input
Width, Height, AV_PIX_FMT_BGR24, //output
SWS_FAST_BILINEAR, NULL, NULL, NULL);
sws_scale(convert_ctx, avframe.data, avframe.linesize, 0, avframe.height,
dst.data, dst.linesize);
sws_freeContext(convert_ctx);
gettimeofday(&end_time, NULL);
float use_time = 1000 * (end_time.tv_sec - start_time.tv_sec) +
(end_time.tv_usec - start_time.tv_usec) / 1000.0;
cout << "use_time2:" << use_time << "ms" << endl; //640x480时sws_scale,yuv2bgr只需要1ms左右
// Mat dstMat(Height, Width, CV_8UC3, dst.data[0]);
// imwrite("res1.jpg", dstMat);
free(yuv_buffer);
free(BGR24_buffer);
}
double duration = (cv::getTickCount() - st) / cv::getTickFrequency();
printf("%.5fs\n", duration);
RGB2YUVSSE_4(Src, Y, U, V, Width, Height, Stride);
YUV2RGBSSE_4(Y, U, V, Dest, Width, Height, Stride);
Mat dst(Height, Width, CV_8UC3, Dest);
//imshow("origin", src);
//imshow("result", dst);
imwrite("res.jpg", dst);
waitKey(0);
}